HVAC system helps provide cell phone reception

Wireless-over-HVAC technology used in the nation's largest convention center provides wireless service in a complex environment.

07/09/2009


The nation's largest convention center, Chicago's McCormick Place , needed a wireless service boost, and the HVAC system helped provide it. ExteNet Systems installed a proprietary wireless-over-HVAC system in McCormick Place that uses HVAC metal ductwork to distribute signals and create a new indoor wireless network.

McCormick Place comprises four convention buildings with a combined total of 2.6 million sq ft of exhibit space. A wireless-over-HVAC system allowed a non-intrusive installation that provides coverage to the entire complex, including office spaces and exhibit floors, without interrupting convention or meeting schedules. ExteNet installed an indoor distributed antenna system (DAS) that can extend the reach of conventional cell sites by using discrete indoor antennas, base transceiver stations, remote radio units, and the metal ducts within the building's existing HVAC system.
Nearly 80% of mobile phone calls in the United States originate or terminate inside buildings, according to ExteNet, and wireless carriers are increasingly interested in indoor DAS. They have been installed in suburban corporate campuses, downtown high-rises, hospitals and other health facilities, and institutions of higher education.





Product of the Year
Consulting-Specifying Engineer's Product of the Year (POY) contest is the premier award for new products in the HVAC, fire, electrical, and...
40 Under Forty: Get Recognized
Consulting-Specifying Engineer magazine is dedicated to encouraging and recognizing the most talented young individuals...
MEP Giants Program
The MEP Giants program lists the top mechanical, electrical, plumbing, and fire protection engineering firms in the United States.
April 2018
VRFs, lighting controls, BIM coordination, and more
March 2018
Sizing water pipes, ASHRAE 90.1, recovering waste heat, and more
January/February 2018
Sizing water pipes, ASHRAE 90.1, recovering waste heat, and more
Data Centers: Impacts of Climate and Cooling Technology
This course focuses on climate analysis, appropriateness of cooling system selection, and combining cooling systems.
Safety First: Arc Flash 101
This course will help identify and reveal electrical hazards and identify the solutions to implementing and maintaining a safe work environment.
Critical Power: Hospital Electrical Systems
This course explains how maintaining power and communication systems through emergency power-generation systems is critical.
click me